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Cephized first segment of an annelid worm's body
The prostomium (From Ancient Greek, meaning "before the mouth"; pl.: prostomia; sometimes also called the "acron") is the cephalized first body segment
Prostomium
Phylum of segmented worms
generally in the prostomium, while those of clitellates are in the peristomium or sometimes the first segment behind the prostomium. In some very mobile
Annelid
Body segment of an annelid worm containing the mouth and sometimes feeding palps
directly behind the prostomium and contains the mouth, tentacular cirri, and sometimes feeding palps, which may instead occur on the prostomium. If an eversible
Peristomium
Terrestrial invertebrate, order Opisthopora
earthworm's mouth and, overhanging the mouth, a fleshy lobe called the prostomium, which seals the entrance when the worm is at rest, but is also used to
Earthworm
Genus of annelid worms
Nerilla antennata, prostomium
Nerilla
Order of annelids
the class Polychaeta. They are filter feeders with no buccal organ. The prostomium is fused with the peristomium and bears a ring of feathery feeding tentacles
Sabellida
Protusions from the body in invertebrates
the anteriormost segments may be specialised into the head region and prostomium, which can result in the modification of those parapodia, loss of chaetae
Parapodium
Species of annelid worm
segment 11; prostomium white. Anterior margin of prostomium with an acute anterior projection. Lateral antennae inserted ventrally (beneath prostomium and median
Eunoe_anderssoni
Species of annelid
segments with chaetae and a prostomium with two very large clavate palpates and three segmented tentacles. On the prostomium it has four eyes and two ciliated
Nerilla_antennata
Species of annelid worm
16 pairs of elytra. The prostomium bears 3 antennae, with a pair of lateral antennae inserted ventrally (beneath prostomium and the median antenna).
Leucia_nivea
Class of annelids that includes earthworms and leeches
individuals. The mouth is on the ventral surface and is overhung by the prostomium (proboscis). The brain is not located in the head but in one of the body
Clitellata
Species of annelid worm
elongated slender worm, tapering slightly towards the posterior. The prostomium (head) bears a pair of antennae, a pair of eyes, two small palps and a
Phyllodoce_maculata
Species of annelid
head. Ophryotrocha scutellus has a dorsoventrally rounded and flattened prostomium, similar to O. platykephale, from which this species differs in jaw morphology
Ophryotrocha_scutellus
Species of annelid worm
share these features: 41-55 segments, a pair of distinct “peaks” on the prostomium, 15 pairs of elytra which have smooth margins lacking papillae, and all
Eunoe_leiotentaculata
Class of annelid worms
divergence from the basic body plan of the common ancestor. The head, or prostomium, is relatively well developed, compared with other annelids. It projects
Polychaete
Species of annelid
a cylindrical, segmented body and a tailpiece. The head consists of a prostomium (part for the mouth opening) and a peristomium (part around the mouth)
Acromegalomma_interruptum
Species of annelid worm
pigmentation pattern. Anterior margin of prostomium rounded. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Notochaetae distinctly
Eunoe_crassa
Species of annelid worm
Violet-coloured prostomium. Anterior margin of prostomium with an acute anterior projection. Lateral antennae inserted ventrally (beneath prostomium and median
Eunoe_abyssorum
Genus of annelids
elytra. Anterior margin of prostomium with a pair of acute anterior peaks. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Palps
Bathynoe
Subclass of annelids including earthworms
subtidal zones, but a few are found at abyssal depths. The first segment, or prostomium, of oligochaetes is usually a smooth lobe or cone without sensory organs
Oligochaeta
Order of annelid worms
over a metre. Each segment bears a pair of paddle-like parapodia. The prostomium generally has one or two pairs of eyes, a dorsal pair of antennae, a ventral
Phyllodocida
Species of annelid worm
able to be distinguished from other Eulagisca and scale worms. On the prostomium, there are three antennae used for mechanosensory. They also have two
Eulagisca_gigantea
Genus of annelid worms
The head consists of two parts: a roughly triangular anterior lobe—the prostomium—and a posterior ring-like portion—the peristomium. The latter bears four
Nereis
Family of annelids
to move Explosively evert pharynx into sediment, anchor position with prostomium and pull body forward. Eversible pharynx also used in prey capture: 4
Glyceridae
Species of annelid worm
pattern. Anterior margin of prostomium with an acute anterior projection. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Notochaetae
Eunoe_etheridgei
Species of annelid worm
formalin). Prostomium anterior margin comprising a pair of acute anterior projections. Lateral antennae inserted ventrally (beneath prostomium and median
Eunoe_rhizoicola
Genus of annelid worms
Carolina. The funnel-shaped, symmetrical peristomium is fused with the prostomium to form the head, at the anterior end of the body. Worms of the genus
Serpula
Species of annelid worm
15 pairs (assumed). Prostomium anterior margin comprising two rounded lobes. Lateral antennae inserted ventrally (beneath prostomium and median antenna)
Eunoe_papillosa
Species of annelid
cylindrical, segmented body and a tail piece. The head consists of a Prostomium (part of the mouth) and a peristomium (area around the mouth) and carries
Myxicola_infundibulum
Species of annelid worm
pigmentation pattern. Anterior margin of prostomium rounded. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Notochaetae distinctly
Eunoe_alvinella
Species of annelid worm
pigmented. Anterior margin of prostomium with an acute anterior projection. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Notochaetae
Eunoe_hartmanae
Topics referred to by the same term
especially in the plant family Euphorbiaceae Caruncle, an appendage to the prostomium of a worm's body Sublingual caruncle, an area on the human tongue Lacrimal
Caruncle
Species of annelid worm
pattern. Prostomium anterior margin comprising a pair of acute anterior projections. Lateral antennae inserted ventrally (beneath Prostomium and median
Eunoe_uniseriata
Species of annelid worm
pattern. Anterior margin of prostomium with an acute anterior projection. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Notochaetae
Eunoe_kermadeca
Species of annelid worm
parapodia, and none on its prostomium and palps; the papillae are long, with trilobed tips and dark inclusions. Its prostomium is ovate, showing 4 large
Sphaerosyllis_voluntariorum
Order of annelid worms
segmented body and a distinct head, normally with a separate peristomium and prostomium. Many, but not all, live in tubes which vary from a mucous sheath to a
Eunicida
Family of annelid worms
into 42 genera. They may be commonly called ragworms or clamworms. The prostomium of Nereididae bears a pair of palps that are differentiated into two units
Nereididae
Genus of annelids
anterior margin of the prostomium has a pair of acute anterior peaks. The lateral antennae are inserted ventrally (beneath prostomium and median antenna)
Australonoe
Species of annelid worm
yellowish parapodia. Anterior margin of prostomium rounded. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Notochaetae thinner
Eunoe_eura
Species of annelid worm
prostomium purple, elytrophores brown; antennae and cirri mottled brown and white and with brown band and white tips. Anterior margin of prostomium with
Eunoe_barbata
Genus of annelid worms
secrete mucus and develop two ventral palps on the dorsal side of the prostomium. 2 days after settling, the palps elongate and the heart starts to beat
Osedax
Species of annelid worm
head, a cylindrical, segmented body and a tail piece. The consists of a prostomium (a section for the mouth opening) and a peristomium (section around the
Syllis_castroviejoi
Genus of annelids
elytra. Anterior margin of prostomium with a pair of acute anterior peaks. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Palps
Bylgides
Species of annelid
longitudinal band. Prostomium anterior margin comprising a pair of acute anterior projections. Lateral antennae inserted ventrally (beneath prostomium and median
Eunoe_spinicirris
Species of annelid worm
elytra 15 pairs. Anterior margin of prostomium rounded. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Notochaetae about
Eunoe_hozawai
Species of annelid (fossil)
these structures as internal microvilli. Tentacles extended from the prostomium and may have served as sensory organs. The gut of Canadia was straight
Canadia_spinosa
Species of annelid worm
colour, with two distinct dark pigmented eyes on its prostomium. The anterior part of prostomium has four large and many small bristles and sensory cilia
Dinophilus_taeniatus
Species of annelid worm
about 14 cm (5.5 in) and over two hundred segments when fully grown. The prostomium (head) is diamond-shaped and has four eyes, arranged in a trapezoid fashion
Scolelepis_squamata
Species of annelid
end. Its prostomium counts with digitiform paired antennae inserted dorsally. Its palps are papilliform, inserted laterally on the prostomium. It lacks
Ophryotrocha_eutrophila
Last body segment in Annelids
also refers to the small region surrounding the anus of the sea urchin. Prostomium Earthworm Sea urchin Sims, R & Gerard, B (1985). Earthworms: Keys and
Periproct
Family of annelids
Nephtyidae are pale, clearly segmented polychaetes with a small pentagonal prostomium with two pairs of small antennae. Their segments are little differentiated
Nephtyidae
Subclass of annelid worms
detritus. Scolecids have parapodia with rami that are all alike. The prostomium is distinct. The head has no appendages or palps and is usually conical
Scolecida
Species of annelid worm
sense organs of Lumbricus rubellus associated with feeding are on the prostomium, located at the anterior end of the organism. The chemoreceptors here
Lumbricus_rubellus
Species of annelid worm
of this worm is about 42 mm (1.7 in) and the width 9 mm (0.4 in). The prostomium has two lobes with a pair of acute anterior projections, a median antenna
Leucia_violacea
Genus of flatworms
to the earthworm to prevent escape. The planarians cover, or cap, the prostomium, peristomium, and anterior end to stop the violent reaction by the earthworm
Bipalium
Species of annelid worm
pattern. Prostomium anterior margin comprising a pair of acute anterior projections. Lateral antennae inserted ventrally (beneath Prostomium and median
Eunoe_opalina
Genus of annelids
bristle-like structures known as setae or chaetae, which aid in locomotion. The Prostomium (head region) is broader than the subsequent segments and is equipped
Aeolosoma
Genus of annelids
9, 11, 13, 15, 17, 19, 21, and 23. Prostomium with three antennae; lateral antennae continuous with prostomium, laterally to median antenna. Parapodia
Lepidonotus
Species of annelid worm
being about 200 mm (8 in) long. The prostomium is roughly pentagonal. Like other members of the genus, the prostomium bears two pairs of antennae, a pair
Phyllodoce_lineata
organ is a ciliated pit or groove present at the posterior end of the prostomium of annelid worms, some cephalopods, and other invertebrates. Annelids
Nuchal_organ
Species of annelid worm
pattern. Prostomium anterior margin comprising a pair of acute anterior projections. Lateral antennae inserted ventrally (beneath Prostomium and median
Eunoe_yedoensis
Species of annelid worm
purple. Prostomium anterior margin comprising a pair of acute anterior projections. Lateral antennae inserted ventrally (beneath prostomium and median
Eunoe_papillaris
Species of annelid worm
green. Anterior margin of prostomium with an acute anterior projection. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Notochaetae
Eunoe_clarki
Species of annelid worm
margin of prostomium with an acute anterior projection. Lateral antennae present. Lateral antennae inserted ventrally (beneath prostomium and median
Eunoe_hubrechti
Species of annelid
dorsally and ventrally. It differs from O. platykephale in the shape of its prostomium and parapodia. Palpiphitime lipovskyae has jaws of both P- and K-type
Ophryotrocha_craigsmithi
Species of annelid worm
species characterized by having only partially fused palps, an unretracted prostomium on its peristomium or showing only slight retraction, the shape of its
Prosphaerosyllis_battiri
Species of annelid worm
short-bodied worm with about 41 segments and 16 pairs of elytra. The prostomium bears a pair of anterior projections on the anterior margin and the lateral
Subadyte_mjoebergi
Species of annelid worm
and fringe of sharp, pointed papillae along their margin. Wide, ovular prostomium with the median antenna with a large ceratophore in an anterior notch
Eulagisca_uschakovi
Group of marine animals ("spoon worms")
retracted into the body. It houses a brain and may be homologous to the prostomium of other annelids. The proboscis has rolled-in margins and a groove on
Echiura
Species of annelid worm
other leeches are that the body is divided into 29 segments, it lacks a prostomium and a peristomium, and the nephridia do not have funnels. It has a sucker
Acanthobdella_peledina
Clade of annelid worms
(A) Anterior end of Magelona mirabilis, showing prostomium, palps, achaetous first segment and first five chaetigers (dorsal view)
Pleistoannelida
Species of annelid worm
segments and was a greyish colour, rather paler on the ventral surface. The prostomium was poorly preserved. The second segment had 46 setae (bristles) in an
Amynthas_mekongianus
Species of annelid worm
segmented worm is long, slender and tapering, with a smooth cuticle. The prostomium bears a pair of antennae, a pair of palps and two pairs of eyes. The first
Neanthes_fucata
Suborder of insects
together', referring to the group's distinctive lack of a wasp waist between prostomium and peristomium. Its common name, "sawfly", derives from the saw-like
Sawfly
Species of annelid worm
(8 in), and is pink, brownish or black with some brown spotting. The prostomium, the front-most segment, is slightly lobed and bears two eyes and five
Eunice_norvegica
Species of annelid worm
colorless. prostomium anterior margin comprising a pair of acute anterior projections. Lateral antennae inserted ventrally (beneath prostomium and median
Eunoe_senta
Species of annelid worm
15 pairs. Prostomium anterior margin comprising a pair of acute anterior projections. Lateral antennae inserted ventrally (beneath prostomium and median
Eunoe_serrata
Species of annelid worm
(presumably). Anterior margin of prostomium with an acute anterior projection. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Notochaetae
Eunoe_bathydomus
Species of annelid worm
150 segments. It has a slender, orange, pinkish or brownish body. The prostomium or head is a blunt cone with a row of 4 to 8 large black eyes on either
Cirratulus_cirratus
Species of annelid worm
segment. Anterior margin of prostomium with an acute anterior projection. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Notochaetae
Eunoe_brunnea
Species of annelid worm
and elytrophores. Anterior margin of prostomium rounded. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Notochaetae distinctly
Eunoe_hydroidopapillata
Species of annelid worm
Psammorilus. Head with elongated, rounded prostomium, that is completely ciliated. Between the prostomium and the peristomium is a ring of long cilia
Psammodrilus_balanoglossoides
Order of annelids
10 mm (0.4 in). The body is formed from fifteen segments. There is no prostomium, and the peristomium and next three segments are modified into a sucker
Branchiobdellida
Genus of annelids
although long specimens may have a short posterior region uncovered. The prostomium is rounded anteriorly and has distinct cephalic peaks on the dorsal surface
Harmothoe
Species of annelid worm
pattern. Anterior margin of prostomium with an acute anterior projection. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Notochaetae
Eunoe_iphionoides
Species of annelid worm
positioned ventrally on the prostomium, directly beneath the median antenna (almost completely obscured in dorsal view). The prostomium also bears a pair of
Hermadionella_nipponicus
Species of annelid
15 pairs. Prostomium anterior margin comprising a pair of acute anterior projections. Lateral antennae inserted ventrally (beneath prostomium and median
Eunoe_tuerkayi
Order of annelid worms
of flexible feeding tentacles with grooves, arising directly from the prostomium. The mouth has no jaws and the pharynx is partly eversible. Some species
Spionida
Species of annelid worm
pigmentation pattern. Prostomium anterior margin comprising two rounded lobes. Lateral antennae inserted ventrally (beneath prostomium and median antenna)
Eunoe_oerstedi
Species of annelid
cylindrical, segmented body ending in a tail. The head consists of a prostomium and peristomium and a pair of appendages (palp, antennae and cirri). Pionosyllis
Pionosyllis_serratisetosa
Genus of annelids
is a genus of polychaete worms, which contains about 200 species. The prostomium bears eyes, two pairs of antennae and a pair of large retractile nuchal
Phyllodoce_(annelid)
Species of annelid worm
body pigmentation. The lateral antennae are inserted ventrally (beneath prostomium and median antenna), with auxiliary appendages at base of lateral antennae
Admetella_brevis
Species of annelid worm
tapered at both ends. The head has no appendages, palps or eyes but has a prostomium and evertable oesophagus. The body is divided into three regions which
Abarenicola_pacifica
Genus of annelids
elytra. Anterior margin of prostomium with a pair of acute anterior peaks. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Palps
Eucranta
Species of annelid worm
segment. Anterior margin of prostomium with an acute anterior projection. Lateral antennae inserted ventrally (beneath prostomium and median antenna). Notochaetae
Eunoe_ivantsovi
Species of annelid worm
wide anterior part of segments 15–17 and a long slim posterior part. Prostomium rectangular shaped with two lateral horns making it appear as a T. peristomium
Scalibregma_inflatum
Species of annelid
brass-colored. Prostomium anterior margin comprising a pair of acute anterior projections. Lateral antennae inserted ventrally (beneath prostomium and median
Eunoe_spinulosa
Species of annelid worm
Aphrodita squamata but was later transferred to the genus Lepidonotus. The prostomium has two lobes and bears several pairs of antennae, a pair of palps and
Lepidonotus_squamatus
Genus of annelid worms
pairs of neuropodia, each with around 2 to 4 chaetae. The head segment (prostomium) supports five pairs of long appendages. Four pairs of appendages are
Teuthidodrilus
Species of annelid worm
length of its prostomium and palps; they have bulbous bases and slender filiform tips. The palps are blunt, longer than its prostomium, fused along their
Sphaerosyllis_goorabantennata
PROSTOMIUM
PROSTOMIUM
PROSTOMIUM
PROSTOMIUM
Girl/Female
Muslim
Intelligent
Girl/Female
Indian
Grape vine
Boy/Male
Tamil
Vishvayonih | விஷà¯à®µà®¯à¯‹à®¨à¯€à®¹
The womb of the universe
Girl/Female
Tamil
Beautiful, Lovable, Assiduous, Successful
Boy/Male
Christian & English(British/American/Australian)
A Gift
Surname or Lastname
English
English : variant of Norrod.Norwegian : variant of Nored.
Boy/Male
Biblical
Words, prophecies.
Male
English
Variant spelling of English Zephaniah, ZEPHANIA means "hidden by God" or "protected by God."
Girl/Female
Gujarati, Hindu, Indian, Marathi
Goddess
Boy/Male
American, British, English
From the Pool Farm
PROSTOMIUM
PROSTOMIUM
PROSTOMIUM
PROSTOMIUM
PROSTOMIUM
pl.
of Prostomium
n.
That portion of the head of an annelid situated in front of the mouth.